摘要:

AbstractA single‐step method for the induction and development of somatic embryoids from hypocotyls explains ofBrassica junceais reported. On modified MS medium containing 2 % sucrose, 0.25 mgl12,4‐D, 0.5 mgl1each of NAA and BaP‐R, each explant calluses at both of and at its best, 31% of explants produce embryoids. In the variety RLM‐198, the number of embryoids ranges from 8–21 per culture. Each embryoid, upon proliferation, developed up to the 25 shoots. The method is rapid; the time La ken from inoculation to the development of intact plantlets is 8–10 weeks. Regenerated plants have flowered normally and have set seed. The system can profitably be used forin vitromutant selection and early bulking

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1989.tb00317.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractBecause of difficulties in pollination, control, F1hybrids have not been widely explioted in lucerne’ (Medicago sativaL.). Strain crossing (uncontrolled hybridization between two or more self‐fertile populations with seed of the populations combined to product a “strain cross” population) represents a potentially valuable alternative procedure for exploiting heterosis in this species. Strain crosses in lucerne are typically produced using insect pollination in the field. Using hand pollination under glasshouse houses could increase the number of strain crosses available for tests of combining ability. The objective of this study was to determine whether forage yield of strain crosses produced using hand pollination were sufficiently similar to that of insect‐produced populations to allow the use of the former in lucerne breeding. Forage yields of eight pairs of hand‐ and insect‐produced strain crosses did not differ significantly in 15 of 16 pairwise comparisons and were positively correlated (rs= 0.90) for 20 harvests at two locations. Yield amp of band produced strain crosses could be used, with reasonable accuracy to accuracy the eventual performance of strain crosses produced between the same populations using insec

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1989.tb00318.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

books reviewed in this article:Wolfe, M. S., and E. Limpert (eds.) Integrated control of Cereal Mildew: Monitoring the Pathogen.Olson, R. A., and K. J. Frey (eds.), Nutritional Quality of Cereal Grains: Genetic and Agronomic Improvement.Kaul, M. L. H., Male Sterility in Higher Plants. Monographs on Theoretical and Applied Genetics, Vol. 10.Buff, W., and K. von der Dunk, Giftpflanzen in Natur und Garten, Bestimmungsmerkmale und Biologie, Anwendung in Medizin, Volksheilkunde und Homöopathie, Symptomatik und Therapie bei Vergiftungen, 2., neubearb. Aufl.Schrader, A., and H. Kaltofen, Gräser‐Biologie, Bestimmung, Wirtschaftliche Bedeutung.Puite, K. J., J. J. M. Dons, H. J. Huizing, A. J. Kool, M. Koornneef, and F. A. Krens (eds.), Progress in Plant Protoplast Research.O'Gara, F., S. Manain, and J. J. Drevon (eds.), Physiological limitations and the Genetic Improvement of Symboitic Nitrogen Fixation. Proc. Int. Cont., Cork, Ireland, September 1—3, 1987. Kluwer Academic Publishers for the Communication of the European Communities, Brussels and Luxembourg 1988. 24 × 16 cm. xI + 215, pages, with many figures and tables. Bound.Srivastava, J. P., E. Porceddu, E. Acevedo, and S. Varma: Drought Tolerance in Winter Cereals.Gepts, P. (ed.), Genetic Resources of phaseolus Beans. Their Maintenance, Domestication, Evolution and Util

ISSN:0179-9541    

DOI:10.1111/j.1439-0523.1989.tb00319.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY